* 38 subchannels allow several users to communicate individually using the same channel

* An electronic voice tells you what settings you are adjusting, so you do not have to take off the headset to check

* Unused, the set automatically switches off after two hours to save the batteries

* An auxiliary input also lets you connect a cellular phone or external com radio, regardless of the frequency

* For safety reasons, the external system has signal priority

* You can also connect a CD player or FM radio and listen to news and music